Grundy County, IA ZIP Codes
Iowa (IA) · 9 ZIP codes · 9 cities
9
ZIP codes
12,347
population (2021)
-0.9%
pop change since 2010
19075
FIPS code
Grundy County ZIP code map
About Grundy County
Grundy County is located in Iowa and contains 9 ZIP codes across 9 cities and communities.
The county's population was 12,347 as of 2021,
a decrease of
0.9% from 12,453 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Grundy County is 19075.
| Population | |
|---|---|
| 2021 population | 12,347 |
| 2010 population | 12,453 |
| Change | -0.9% |
| County details | |
|---|---|
| State | Iowa |
| FIPS code | 19075 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Grundy County
ZIP codes for Grundy County, IA (9)
| ZIP code | City | County | Map |
|---|---|---|---|
| 50609 | Beaman | Grundy | View map |
| 50621 | Conrad | Grundy | View map |
| 50624 | Dike | Grundy | View map |
| 50638 | Grundy Center | Grundy | View map |
| 50642 | Holland | Grundy | View map |
| 50657 | Morrison | Grundy | View map |
| 50669 | Reinbeck | Grundy | View map |
| 50673 | Stout | Grundy | View map |
| 50680 | Wellsburg | Grundy | View map |
Demographics & statistics
11,148
Population
43.4
Median age
$81,224
Median household income
$38,768
Per capita income
$151,888
Median home value
$714
Median monthly rent
85.7%
Home ownership
5.4%
Poverty rate
3.7%
Unemployment
4,133
Housing units
25.8%
Bachelor's or higher
Age distribution
Male
Female
308
Under 5
299
392
5–9
380
367
10–14
357
336
15–19
326
254
20–24
247
642
25–34
622
661
35–44
642
682
45–54
661
417
55–59
404
394
60–64
382
607
65–74
589
444
75–84
431
154
85+
150
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2,562 | 21.1% |
| 18 and over | 8,586 | 79.0% |
| 65 and over | 2,375 | 20.7% |
| Median age | 43.4 years | |
Race & ethnicity
White
94.8%
Two or more races
1.7%
Hispanic or Latino
1.6%
Black or African American
0.8%
Other race
0.7%
Asian
0.3%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 10,738 | 94.8% |
| Two or more races | 189 | 1.7% |
| Hispanic or Latino | 182 | 1.6% |
| Black or African American | 86 | 0.8% |
| Other race | 84 | 0.7% |
| Asian | 37 | 0.3% |
| American Indian / Alaska Native | 14 | 0.1% |
Household income
Under $10k
3.1%
$10k–$15k
1.3%
$15k–$25k
4.4%
$25k–$35k
4.9%
$35k–$50k
10.9%
$50k–$75k
18.5%
$75k–$100k
22.4%
$100k–$150k
18.5%
$150k–$200k
7.8%
$200k+
8.2%
| Range | % of households |
|---|---|
| Under $10k | 3.1% |
| $10k–$15k | 1.3% |
| $15k–$25k | 4.4% |
| $25k–$35k | 4.9% |
| $35k–$50k | 10.9% |
| $50k–$75k | 18.5% |
| $75k–$100k | 22.4% |
| $100k–$150k | 18.5% |
| $150k–$200k | 7.8% |
| $200k+ | 8.2% |
| Median income | $81,224 |
Housing
Home values
Under $50k
5.0%
$50k–$100k
18.8%
$100k–$150k
18.2%
$150k–$200k
15.8%
$200k–$300k
24.7%
$300k–$500k
15.5%
$500k–$1M
1.2%
$1M+
0.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $151,888 |
| Median rent / month | $714 |
| Owner occupied | 85.7% |
| Renter occupied | 14.3% |
| Vacant | 6.5% |
| Single-family detached | 89.9% |
| Large apartment buildings | 0.8% |
| Mobile homes | 1.3% |
| Median rooms | 6.6 |
| Avg household size (owned) | 2.39 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 7.3% |
| 2000–2009 | 7.0% |
| 1990–1999 | 6.2% |
| 1980–1989 | 4.0% |
| 1970–1979 | 12.1% |
| 1960–1969 | 10.7% |
| 1950–1959 | 9.1% |
| 1940–1949 | 6.7% |
| 1939 or earlier | 36.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.1% |
| 1 bedroom | 6.6% |
| 2 bedrooms | 18.8% |
| 3 bedrooms | 44.3% |
| 4 bedrooms | 24.8% |
| 5+ bedrooms | 5.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.1% |
| 1 vehicle | 20.1% |
| 2 vehicles | 44.0% |
| 3 or more | 33.8% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 50.5% |
| Electricity | 13.6% |
| Propane / LP gas | 32.7% |
| Fuel oil | 0.8% |
| Wood | 2.1% |
| No fuel used | 0.2% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 2,753 | 65.3% |
| Cohabiting couple | 291 | 5.0% |
| Male householder, no spouse | 678 | 15.7% |
| Female householder, no spouse | 837 | 14.0% |
| Households with children under 18 | 1,412 | 27.5% |
| Households with seniors (65+) | 1,620 | 33.7% |
| Average household size | 2.37 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 21.5% | 17.4% |
| Married | 66.3% | 66.7% |
| Separated | 1.2% | 1.0% |
| Widowed | 3.6% | 8.5% |
| Divorced | 7.4% | 6.5% |
Education
Less than 9th grade
1.0%
Some HS, no diploma
2.9%
HS graduate
37.4%
Some college, no degree
18.8%
Associate's degree
14.0%
Bachelor's degree
19.8%
Graduate / professional
6.0%
| Metric | % |
|---|---|
| HS diploma or higher | 96.1% |
| Bachelor's or higher | 25.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 214 | 8.5% |
| Kindergarten | 158 | 4.7% |
| Elementary school | 1,244 | 46.4% |
| High school | 568 | 23.4% |
| College / grad school | 426 | 17.0% |
Employment
Industry of employment
Education & healthcare
27.2%
Manufacturing
12.4%
Construction
9.9%
Retail trade
9.1%
Agriculture & mining
8.7%
Professional & management
5.4%
Other services
5.2%
Information
5.2%
Transportation & utilities
4.7%
Wholesale trade
3.9%
Finance & real estate
3.9%
Arts, food & hospitality
2.6%
Public administration
1.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 42.2% |
| Service | 13.4% |
| Sales & office | 17.0% |
| Natural resources & construction | 13.0% |
| Production & transportation | 14.4% |
Employment type
| Type | % |
|---|---|
| Private sector | 77.3% |
| Government | 11.4% |
| Self-employed | 11.2% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 80.2% |
| Carpool | 5.7% |
| Public transit | 0.1% |
| Walk | 2.5% |
| Other means | 0.5% |
| Avg commute (minutes) | 23.1 |
Poverty
All people
5.4%
Under 18 years
6.1%
18 and over
5.2%
Married-couple families
2.4%
Female-led households
20.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 33.1% |
| Retirement income | 22.4% |
| Supplemental Security | 3.2% |
| Cash public assistance | 2.2% |
| Food stamps / SNAP | 5.1% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 29.8% |
| High cholesterol | 30.0% |
| Heart disease | 5.8% |
| Stroke | 2.5% |
| Asthma | 7.7% |
| Arthritis | 21.8% |
| Kidney disease | 2.5% |
| Pulmonary disease | 5.4% |
| Cancer | 6.8% |
| Behavior / access | % |
|---|---|
| Binge drinking | 18.4% |
| No physical activity | 19.0% |
| Less than 7 hrs sleep | 25.6% |
| Fair or poor health | 9.9% |
| Poor mental health | 11.0% |
| Poor physical health | 7.8% |
| No health insurance | 7.2% |
| Visited doctor (checkup) | 66.7% |
| Visited dentist | 59.3% |
| Cholesterol screening | 78.7% |
| Teeth loss | 9.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 527 | 9.0% |
| Disability | % |
|---|---|
| Any disability | 9.5% |
| Under 18 | 7.1% |
| 18–64 years | 5.9% |
| 65 and over | 21.9% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 78.1% |
| Public insurance | 37.0% |
| Uninsured under 19 | 2.9% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 10,541 | 94.9% |
| Spanish | 96 | 0.7% |
| Other Indo-European | 72 | 0.6% |
| Asian & Pacific Islander | 13 | 0.1% |
| Other languages | 11 | 0.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 10,989 | 98.8% |
| Born in same state | 10,928 | 98.3% |
| Born in different state | 9,567 | 82.9% |
| Foreign born | 61 | 0.4% |
| Naturalized citizen | 159 | 1.3% |
| Not a US citizen | 57 | 52.4% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 938 | 8.4% |
| Arab | 916 | 8.2% |
| French | 875 | 7.8% |
| Polish | 448 | 4% |
| English | 307 | 2.8% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 209 | 1.9% |
| Norwegian | 27 | 0.2% |
| Irish | 17 | 0.2% |
| German | 5 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 42.0% |
| Internet access | 92.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Explore more Iowa ZIP codes